Telephone-receiver.



A. U. JONES.

TELEPHONE RECEIVER APPLICATION mm MAY 1. 1913.

Patented Jan. 18, 1916.

u-YNESSES f M Aw WW UNITED STATES PATENT oFFicE;

ALVA I); TUNES, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-FOURTH TO EUGENE S. COCHBAN, OF WASHINGTON, DISTRICT OF COLUMBIA, AND ONE-FOURTH TO 13. HAYWARD FAIRBANKS, 0F MERCHANTVILLE, NEW JERSEY.

TELEPHONE-RECEIVER.

Patented Jan. 18, 1916.

Application filed May 7, 1913. Serial No. 766,080.

To aZZ whom it may concern:

Be it known that I, ALvA D. J ONES, a citizen of the United States, residing in the city and count of Philadelphia, State of Pennsylvania, ave invented a new and useful Telephone-Receiver, of which the followin is a specification.

My invention consists of a novel constructionv of a telephone receiver wherein the parts are constructed and arranged in a novel manner.

' Itfurther consists of a novel telephone receiver wherein the diaphragm and armature are mounted in a novelmanner.

It further consists of a novel apparatus for reproducing vocal, instrumental, mechemical or magnetically created sounds.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustrating my invention, I have shown in the accompanying drawings one form thereof which is at present preferred. by me, since the same will be found in practice to give satisfactory, and reliable results, although it is to be under stood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangem nt and orgz'inization of these instrumento. a "n shown and described.

1 -seuts a sectional elevation receiver, embodying my inesenis, on an enlarged of reference indicate riding parts.

ing to the drawings-"ln the emb seen in Fig. 1 I ha e shown my sound reproducing mechanism as to be employed as a receiver in the r anner of a telephone receiver. In this embodiment, designates the receiver or casing, within which is located a magnet 89, to which is connected a block 90 by means of fastening devices 91. 92 desig natesa plate which is secured with respect to the magnet 89 by means of a fastening device 93. 9% and 95 designate electromagnets operatively connected with the plate 92. The wires 96 and 97 leading from the electro-inagnets 94 and 95 respectively pass through the aperture 98 in the casing 88,

seen in Fig. 1.

for the electro-magnets, said housing having threaded engagement with the casing 88 and having an internal shoulder 101, against which the plate 92 abuts, it being noted that the material 99 surrounds the inner end of the housing 100. The plate 9:2 is preferably constructed of brass or other similar material and the ends of the magnet 89 ,extend through the plate 92. 102 designates an armature between which and the electro-magnets 9% and 95 are located the resilient bumpers 103, it being seen that each magnet is provided with one of such bumpers. These bumpers prevent the armature from sticking to the magnet in case of an overcharge of current. The armature 102 is preferablyof steel and permanently magnetiz'ed and is insulated from a diaphragm 104, by which it is centrally supported, as will be best understood by reference to Fig. 2. 105 designates a fastening device, such as a screw, which is insulated from the div phragm 10d and the armature 102 by a tube 106 of insulating materiahan insulating washer 10? being provided andalso an insulating washer 108, whereby the armature and diaphragm are positively insulated from each other, as is apparent. 109ldesignates a nut for the screw 105. The purpose of insulating the armature from the diaphragm is to prevent any chattering or metallic ring being produced. The purpose of having the armature permanently magnetized is to increase the magnetic field, it being understood that in all of the embodiments of my invention, herein shown, the diaphragm, as well as the armature, is resiliently suspended in the magnetic field. At any desired distance from the outer'periphery of the diaphragm 104, I secure a split ring 110, between which the diaphragm extends, and

this ring 110 may be of any desired material,

' zone or field, and is not limited to and lll.

- scope of [th inner periphery split,-in order that the edges will seat upon and engage the sides of the split ring 110. The resilient ring111vv may be constructed of any desired material. such .as for example, rubber or spring metal, and

is seated in an annular groove 112 in the housing 100 it being seen that the'receiver cap 113 is in threaded engagement with the housing 100 and also bears against the resilient member 111. An insulating washer 114 is also preferably provided between the armature 102 and the diaphragm 104:. The resilient bumpers 103 preferably extend'beyond the magnetic poles of their respective 1electro-nnignet. It will of course be under stood that the resilient men'iber 111 may be split at its outerperiphery or otherwise formed, since my invention, in its broad and generic scope. providesmeans to resiliently suspend the diaphragm within the magnetic any specific type of members such as (32 or- 110 :It will now be apparent that-I have devised a novel and useful construction of a telephone receiver, which embodies the features of advantage eruunerated as desirable in the statement of the invention and the above description; and while I have, in the .present instance, shown and described a preferred. embodiment thereof \vlnclruul'l give in practice satisfa'ctoryand reliable results it is to be understood that the same is susceptible of modification in various particle lars without departing from the/spirit or its advantages.

Having lfllllSiltSCl'lhHl my invention, what I. claim as new ters Patent, is z- 1. A telephone receiver, comprisinga casing, electro-magnets' within the, casing, a

diaphraglm a sectional ring through which said diaphragm extends, a resilient ring e invention or sacrificing -any of and desire to si 'aure by Lethaving its inner periphery split to'receive the peripheral portion of the diaphragm and having its edges engaging the sectional ring, and an armature carried by said diaphragm.

2. A telephonereceiver, comprising a casing, electro-ma'gnets within the casing, a diaphragm, a sectional ring through which said diaphragm extends, a resilienhiing having its inner periphery split to receive the peripheral portion of; the diaphragm and having its edges engaging the sectional ring, and an armature secured to and insulated from said diaphragm. i

. 3. A telephone receiver, comprising a casing, electro-mag'nets within the casingia diaphragm, a sectional ring through which said diaphragm extends, a resilient ring having its inner periphery split to receive the peripheral portion of the dlaphragm and having its edges engaging the sectional ring, and a permanently magnetized arma--- turesecured to ,aid diaphragm.

41A telephone receiver, comprising a casing. electro-magnets within the casing, a diaphragm, a sectionalring through which said diaphragm, extends, aresilientring having its inner periphery split to receive the peripheralportion of. the diaphragm and having its edges engaging the sectional ring, and an armature spaced from, carried by, and insulated from said diaphragm.

A telephone receiver, comprising a casing, electro-magnets within 'the casing, a diaphragm, a sectional ring through which said diaphragm extends, a resilient'ring having its inner periphery splitto receive the peripheral' portion of the diaphragm and having its edges engaging the sectional ringi andta permanently magnetized armature spaced from, carried bypand insulated 

